What can you do when you segment a sound into tiny bits separated by zero crossings? Here's one idea: go back from each zero crossing until you find a local maximum or minimum. Also go forward until you find a local maximum or minimum. The apply a resampling to this part of the wave.
Min/ Max rsmp: The minimum and maximum resampling factors. There some decision algorithm inside that tries to find out whether a wave crossing a zero is "fast" or "transient" or whether it moves slowly. Depending on this analysis, a resampling value between min and max is chosen. Can't remember now which was which.
Quality: length of the sinc interpolation for the resampling algorithm. (see Resample-Module).